In an effort to slow down the proliferation of “monster homes” in Corona Heights, Supervisor Scott Wiener will introduce legislation Tuesday that would require additional scrutiny of proposed large homes and additions in the neighborhood.

The legislation would require a conditional use hearing, a more in-depth environmental evaluation than is typical, for any new structure that exceeds 3,000 square feet or for any addition that would increase the size of an existing home by more than 75 percent. It would also limit extensions to 55 percent of lot coverage.